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(No Model.) 3 Sheets-Sheet 2;

H. $20K. BOLTING MACHINE.

No. 575,992. Patented Jan. 26, 1897;

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BOLTING MAGHINE.

No. 575,992. Patented Jar 1. 26, 1897.

mus PEYERS cow Pno'ram'nq, WASNINGTON a c UNITED STATES PATENT OFFICE.

HEINRICH SECK, OF DRESDEN, GERMANY.

BOLTING- MACHINE.

SPECIFICATION forming part of Letters Patent No. 575,992, dated January26, 1897.

Application filed June 25, 1896.

To all 2071 0122, it may concern.-

Be it known that I, HEINRICH 31201;, of Dresden, in the Kingdom ofSaxony and German Empire, have invented a certain newand usefulImprovement in Bolting-Machines; and I do hereby declare that thefollowing is a full, clear, and exact description of the invention,which will enable others skilled in the art to which it appertains touse the same, reference being had to the accompanying drawings, formingpart of this specification.

This invention relates to bolting-machines, and more especially tobolting-machines of that particular class having a stationary framespanned with bolting-cloth and a rotatable frame mounted therein andprovided with elevating-wings, which act to elevate the material to bebolted, and with propellingwings, which act to throw the said materialagainst the inner sides of the bolting-cloth.

In some of the bolting-machines as heretofore generally constructed theuse of astationary frame (although generally preferable byreason of thegreater facility of keeping the meshes of the bolting-cloth free fromobstructions) presented this objection that a comparatively-limitedportion only of the surface of the bolting-cloth would come into properaction, because it would be always the same portion thereof which wouldreceive the impact of the greater part of the material to be sifted,while the other portions of the surface of the bolting-cloth would to agreat extent remain out of contact with the said material.

One object of my invention is to provide an improved construction ofmachine wherein all portions of the sifting-cloth, although the latterand the frame spanned therewith remain stationary when the machine is inoperation, will be properly and evenly acted upon, and'ot-her objectsare to provide improved means for cleaning the bolting-cloth or keepingthe same free from obstructions, as well as for rendering all portionsof the bolting-cloth and its frame'easily accessible even in such caseswhere the location of the machine presents difficulties in this respect.

My invention therefore consists in the details of construction andcombination of parts more fully hereinafter described, and illus- SerialNo- 596,915. (No model.)

trated in the accompanying drawings, in whioh I Figure 1 is a central"ertical longitudinal section of a bolting-machine embodying myimprovements, the interior rotary frame and the bottom portion of themachine being omitted. Fig. 2 is a vertical transverse section on theline 56 y of Fig; 1,- showing the parts omitted above. Fig. 3 is a planview of the brushing mechanism for keeping the boltingcloth clean, thebrushes themselves, however, being omitted. Fig. 4 is a central verticallongitudinal section of the feed end portion of the machine, drawn to alarger scale than Fig. 1 and showing parts of the interior rotary' framewith its wings. Fig. 5 is a section on the line y z of Fig. 4 as seenwhen looking to the right in that figure.

\Vithin the usual outer casing is mounted a cylindrical frame consistingof the annular head portions t, the longitudinal portions rm, and theperipheral arms is, extending between the said longitudinal portions andsupporting the usual bolting-cloth, which thus forms an approximatelycylindrical surface or web around the entire frame. J ournaled insuitable bearings provided in the end portions of the outer casing isthe shaft m. Rigidly out-er frame above described and concentricallythereto is the rotatable inner frame, the same consisting substantiallyof suitable head portions, such as h, secured on the shaft m by means ofthe hubs h or otherwise near the ends of the outer frame, Fig. 4, and ofsuitable longitudinal connections between the said two head portions.Extending either spirally or longitudinally on the outer periphery ofthe said rotatable frame are the propelling-wings or beaters a, whichupon the inner frame being rotated act in conjunction with thecentrifugal force to throw the material to be bolted against the innersurmanner. The said propelling-Wings or beatthe periphery of the rotaryframe in close mounted on this shaft within the stat-ionary face of thebolting-cloth in a well-known proximity tothe said propellin g-win gs a,are the elevating-wings Z). (Best shown in Fig. 5.) The saidelevating-wings are pivotally conneeted near the ends of the rotaryframe with the outer ends of the rods g, the latter being with theirinner ends pivotally connected with an annular strap or ringj", looselysurrounding the shaft on and resting thereon in the position shown inFig. 5. The entire mechanism is thus eccentrically supported on and withrelation to the shaft 012, the low ermost of the elevating-wings beingin the position shown in Fig. 5 inclined so as to approach with itsouter edge as near as possible the inner periphery of the stationaryframe, while the uppermost one of the wings lies approximatelyhorizontally, and the other two wings on the right and left occupyintermediate positions. It will thus be seen that when the rotatableframe is set in motion by the rotation of the shaft in the said wingsand connections, as well as the annular strap f, will be rotatedlikewise, and since the said annular strap, by reason of its weight andof the weight of its connected parts, will in retating remain in itseccentrieal position each of the elevating-wings 7) will consecutivelyassume the different positions shown in Fig. 5, thereby alternatelychanging their position relatively to the surface of the bolting-cloth,so that in the lowermost position each of the wings will mostefticiently seize and lift the material, (fed into the machine asindicated by the arrow in Fig. 4:,) whereas the nearer each wing willapproach the uppermost position the more readily and efliciently it willrelease the material lifted to the required re spective height.

The material sliding down along the inner surfaces of theelevating-wings, after having been seized and while being lifted by thelatter, will be seized by the propelling-wings a and thrown by themagainst the inner surface of the bolting-cloth on the outer frame. Theelevating-wings Z), at the same time acting during the rotary movementto displace the air from within the space contained between themselvesand the said propelling-wings a, will produce within such space acertain rareiieation of air, thereby causing a current of air which willconvey the material to the elevating-wings Z). The latter will at thesame time produce a pressure current of air moving in a radially outwarddirection, and the material will thus be thoroughly and evenlydistributed over the entire surface of the bolting-cloth, this effectbeing materially assisted by the reciprocating or swinging movements ofthe elevating wings, as described.

That portion of my invention the object of which is to provide forkeeping the meshes of the bolting-cloth clean consists, essentially, ina system of peripheral arms extending parallel to the surface of thebolting-cloth on the outside thereof and having secured thereto, bymeans of springs or by other equivalent said annular flanges.

means, a number of brushes, which are thus made to bear with an elasticpressure against the outer surface of the bolting-cloth. The entiresystem of brushes is reciprocated lengthwise of the stationary frame bymeans of a crank and connecting-rod mechanism acting upon a bar to whichthe said peripheral arms are secured. (Z designates the said bar, and cthe peripheral arms, secured transversely thereto and extending aroundthe greater portion of the outer periphery of the bolting-cloth of thestationary frame. t' and t" are transverse arms attached, at suitabledistances apart, to the said peripheral arms and having secured theretoat or near their two ends the brushes at, as shown in Fig. 2. The saidbrushes are curved inwardly, so as to make them conform to the surfaceof the bolting-cloth. e is a connecting-rod pivotally connected with itsone end to the bar d, while its other end is pivotally connected with acrank-arm 6, extending horizontally from the shaft f, journaled in thetop portion of the outer casing of the machine and carrying theworm-wheel e rotated through a worm c on the shaft c The said shaft 6may have retary movement imparted to it by means of a belt from the mainshaft m, as indicated in Fig. 1. It will thus be seen that by therotation of the worm-wheel c the bar d, and with it the entire system ofbrushes, is reciprocated over the outer surface of the boltingeloth, theresult being that the brushes will remove from the meshes of thebolting-cloth any particles of material that may have settled therein,and the bolting-cloth will thus be kept clean while the machine is inoperation.

That part of my invention the object of which is to render all portionsof the frame spanned with the bolting-cloth more readily accessible thanheretofore is best shown in Figs. 1, 2, and 4. t t are annular flanges,preferably of cast-iron and secured to the opposit-e inner sides of thestandards of the outer casing of the machine, and these flanges aresurrounded by the annular end portions 25 of the frame, the said annularportions, with their longitudinal connections q and q, being capable ofturning or sliding on the Since these parts, together with thelongitudinal bars 3 and the peripheral arms 70, secured to the parts (1and q, form the outer frame, it will be seen that the latter may thus beswung around on the said flanges if, so that in such cases where, byreason of the machine being unfavorably located, the one or the otherside of the said frame is obstructed by other machines or the like, andthus not readily accessible for re pairing purposes, the respectiveside, portion of the frame may be swung orturned around to the otherunobstructed side, where it will then be readily accessible. Of coursewhen the machine is at work the said frame will remain stationary, andas a means for normally holding it in position I may provide a ICC lever3', having at its outer end a counterweight j and formed at its innerend with a hook which enters a corresponding notch in a peripheral part0 of the frame. hen it is desired to turn the frame on the annularflanges, the hooked end of the lever j will first have to be lifted outof the said notch and the mechanism for reciprocating the saidcleaning-brushes disconnected from its actuating mechanism, as will bereadily understood from the drawings. This done, the entire frame may beswung around as described.

Having thus fully described my invention, what I desire to claim andsecure by Letters Patent is- 1. In a bolting-machine, the combinationwith a stationary outer frame and its boltingcloth covering, of an innerrotatable frame provided with oscillatory elevating-wings b andrigidly-attached propelling-wings a, the said elevating-wings beingadapted to approach the bolting-cloth and seize the material to bebolted and then deliver it to the propelling-wings that throw saidmaterial against the bolting-cloth, substantially as described.

2. In a bolting-machine, the combination with a stationary outer framehaving a boltingcloth covering and normally held locked in a stationaryposition, of means for unlocking and swinging around the said frame, areciprocating brush in contact with the outer sur- HEINRICH SECK.

IVitnesses:

O. Dnnscnow, HERMANN FRUHE.

